| Bulletin Date: | Mar. 21, 2023 |
| Component: | Engine and engine cooling |
| Bulletin Summary: | This technical service bulletin announces introduction of new valve seat guide no. 6381879 and supersedes the old part no. 3906206. |
| Vehicles covered in this TSB: |
Cummins B5.9,
Cummins ISB.
|
| Bulletin Date: | Sep. 23, 2016 |
| Component: | Engine (pws) |
| Bulletin Summary: | This technical service bulletin introduces the release of a new coolant level sensor. Certain engines in transit bus applications are experiencing pin corrosion as the result of poor cealing performance of the original equipment manufactur |
| Vehicles covered in this TSB: |
Cummins B5.9,
Cummins Isb6.7,
Cummins ISL9.
|
| Bulletin Date: | Sep. 21, 2016 |
| Component: | Engine (pws) |
| Bulletin Summary: | This technical service bulletin describes the proper troubleshooting steps to diagnose lubricating oil found around the turbocharger section gear and the variable geometry turbucharger actuator gear. This is a normal and does not indicate |
| Vehicles covered in this TSB: |
Cummins B5.9,
Cummins Isb6.7,
Cummins ISL9.
|